1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Lilit [14]
3 years ago
5

7. A box is pulled straight across the floor at a constant speed. It is pulled with a horizontal force of 48 N.

Physics
1 answer:
Leya [2.2K]3 years ago
4 0

Answer:

a)Taking into consideration Newton’s second law, we know that

Net_Force = mass * acceleration

Since the box is pulled at constant speed, the acceleration is equal to zero.

This means that

Net_Force  = 0 N

b) Force of friction

The net force is equal to the sum of all forces,

Net_Force   = Force_applied - Friction

We found that Net_Force  = 0, which means

Friction = Force_applied = 48 N

c) If the box comes to a stop. And the applied force becomes zero, the friction force becomes also zero.

Friction  = 0 N

You might be interested in
A.complete the following sentences with your own result or condition
ludmilkaskok [199]

1. If I hadn't bought that car yesterday.

2. I would have never bought the tickets for today..

3. She wouldn't have gotten suspended.

4. We could've worked on our project.

5. but I was in the shower.

6 0
3 years ago
The figure shows two forces acting on an object, with magnitudes F1 = 78 N and F2 = 26 N.
Stels [109]
A 52 N is your answer
8 0
3 years ago
Read 2 more answers
the nucleus and the subatomic particles in the nucleus, what is the charge of the nucleus of an atom?
pychu [463]
The Nucleus contains Protons and Neutrons.

The Neutrons does not have a charge.

The Protons are positively charge.

Hence the charge on the Nucleus, would be the charge of the proton, which is positive.

Hence Nucleus is Positively Charged.
4 0
3 years ago
4:list one food chain that is part of the food web.
Sophie [7]
4. Grass - Caterpillar - Hedgehog - Fox
5. Caterpillar, Rabbit, Mouse.
6. Cougar and Fox.
7. Bacteria
8. The bird, hedgehog, Fox and cougar would be effected since the Hedgehogs and birds would soon die out due to the loss of their food. Once they die out, the cougar and Fox would have no predators left to eat.
6 0
3 years ago
reasons. 5. Why is the unit of temperature called a fundamental unit? Give reasons. ring derived unit.​
Furkat [3]

Explanation:

It doesn't depends upon other.

It have it's own identity.

It's a lot easier to measure temperature than to measure the motion of component particles.

8 0
3 years ago
Other questions:
  • What is true about isolines on a weather map?
    8·2 answers
  • Technician A says a respirator will block all poisonous fumes produced in a shop. Technician B says a respirator will block only
    8·1 answer
  • 5. Why should the electrons be placed separate from each other (why not together)?
    6·2 answers
  • The earth's hydrosphere includes which of the following?
    11·2 answers
  • Chuck and Jackie stand on separate carts, both of which can slide without friction. The combined mass of Chuck and his cart, mca
    7·1 answer
  • In the diagram, the liquid is vaporizing at which point?
    14·1 answer
  • Which of the following is a scalar quantity
    5·1 answer
  • What is inertia and how is it related to the newton's first law of motion?
    14·1 answer
  • Find the rate constantrif the population doubles in 12 days.b.ifp= 200 initially (whent= 0), what is the population whent= 18 da
    13·1 answer
  • Three types of physical cables that carry a signal are twisted pair, fiber optic, and ____.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!